jet-skiing
Concise Oxford English Dictionary © 2008 Oxford University Press:
jet ski
▶noun trademark a small jet-propelled vehicle which skims across the surface of water and is ridden in a similar way to a motorcycle. ▶verb (jet-ski) ride on a jet ski.
– derivatives
jet-skier noun,
jet-skiing noun.
jet-skier noun,
jet-skiing noun.
'jet-skiing' also found in these Oxford entries:

